Boat&#39;s rudder.



N; JANTZEN.

BOAT'S BUDDER.

APPLICATION FILED SEPT. 12. B16.

" Patented Jan. 2

1917. 2 suns-swan l.

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N. JANTZEN.

BOM'S RUDDER.

APPLICATION rusn SEPT. I2. 1916.

Patented Jan. 2, 1917.

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NIELS JANTZEN, OF TACOMA, WASHINGTON.

BOATS nunnnn.

Specification of Letters Patent.

Patented J an. 2, 1917.

Application filed September 12, 1916. Serial No. 119,717.

To all whom it may concern:

Be it known that I, NIELs J ANTZEN, a citizen of the United States,residing at Tacoma, in the county of Pierce and State of WVashington,have invented new and useful Improvements in Boats Rudders, of which thefollowing is a specification.

The invention relates to a boats rudder, and more particularly to theclass of ships rudders and brakes.

The primary object of the invention is the provision of a rudder andbrake structure for ships wherein the blades of the rudder and brakesare readily and easily placed in position and can be manipulated for themaneuvering of the ship to change or alter the course of travel thereofso that the same can take sharp turns or can move obliquely and at thesame time the control of the ship to reduce the speed of travel thereofwhen the occasion requires is effected by the manipulation of therudders.

Another object of the invention is the provision of a rudder and brakestructure of this character wherein the same is of novel form so thatthe course of the ship will be positive for the guiding thereof in suchcourse.

A further object of the invention is the provision of a rudder and brakestructure of this character wherein the same are readily interchangeablefrom the bow to the stern end or vice versa and are so mounted toeliminate hinges, the said rudder and brake being coupled in a .novelmanner to permit the self-locking thereof in position and is capable ofoperation for the maneuvering of the ship in its desired course.

A still further object of the invention is the provision of a rudder andbrake structure wherein on damage thereto the same can be readilyremoved with despatch and a new rudder and brake placed in its stead orthe damaged rudder repaired and thereafter conveniently replaced inproper position.

A still further object of the invention is the provision of a rudder andbrake structure of this character which is extremely simple inconstruction, thoroughly reliable and eflicient in its operation,strong, durable and inexpensive in manufacture and installation.

Other objects will be in part obvious and ,in part hereinafter setforth.

The invent'on accordingly consists in the features of construction,combination of ele ments and arrangement of parts which will beexemplified in the construction hereinafter described, and the scope ofthe application of which will be indicated in the appended claims.

In the accompanying drawings: Figure 1 is aside elevation of a boatshowing the fore and aft combined rudder and brake structure inaccordance with the invention; Fig. 2 is an enlarged fragmentaryvertical longitudinal sectional view; Fig. 3 is a top plan View; Fig. 4is a sectional view on the line t4 of Fig. 3; Fig. 5 is an elevationlooking toward the aft end of the boat showing the manner ofintroduction of the rudder and brake therein; Fig. 6 is a fragmentaryelevation showing the clutch coupling for the rudder the latter being released from the coupling; Fig. 7 is a fragmentary vertical longitudinalsectional view through the boat.

Similar reference characters indicate corresponding parts throughout theseveral views of the drawings.

Referring to the drawings in detail, A designates generally the body ofa boat which is termed the hull and is formed at its bottom with thekeel B as usual. In the fore and aft ends of the body A are formedframed openings O, each frame 10 thereof being designed for the mountingof the combined rudder and brake hereinafter fully described. Eachcombined rudder and brake comprises a blade 11 which, in this instance,is preferably of truncated elliptical shape and is reinforced, as at 12,to give strength and rigidity thereto. Each blade 11 is formed atopposite truncated ends with the clutch and pivot sockets 13 and 14,respectively, while mounted in each frame 10 of the opening at thebottom thereof is a pivot stud 15 which loosely engages in the pivotsocket 14, while fitted in the said frame 10 at the top thereof forvertical sliding movement is a shaft 16 formed at its lower end with aclutch head 17 which is adapted for detachable engagement in the clutchsocket 13 in the blade 11, and in this manner the latter is detachablymounted within the opening 10 so as to permit the convenient removalthereof with despatch or the placing of said blade therein, as will beobvious. On the upper end of each stem 16 is mounted a cable. pulley ordrum 18 while within the body A of the boat along the sides thereof andsuitably supported are guide rollers or pulleys 19, over which istrained an endless cable 20, the same being also trained over the pulleyor drum 18 on the shaft 16 at the bow or fore end of the body A of theboat, the cable 20 being also coiled about an operating drum or pulley21 which is located at a convenient point near the stern end of the boatA within the body thereof,

and this pulley 21 is carried by a driven stud shaft 22 having a wormgear 23 with which meshes a worm screw 24: operated by a hand wheel 25so that the bow rudder can be turned as the occasion may require for theguiding of the boat in any desired course. Trained about the pulley ordrum 18 on the stem 16 at the stern end of the boat A is an endlesscable 26 which is also coiled about an operating pulley or drum 27 on astud shaft 28 which carries a worm gear 29 meshing with a worm screw 30having a hand Wheel 31 which permits the manual manipulation of thestern rudder and brake, as will be clearly obvious.

When the blades 11 both at the bow and stern of the body A of the boatare disposed at right angles to the straight course of travel the samewill serve as a brake to retard the momentum of the boat and on angulardisposition of the said blades 11 the boat will be maneuvered for theguiding thereof in any desired course.

It will be apparent that by adjustment of the blades 11 which constitutethe combined rudders and brakes the boat can be moved obliquely from astraight course either to the right or the left and also either a rightor left sharp turn can be effected.

From the foregoing description, taken in connection with theaccompanying drawings, the construction and operation of the hereindescribed boats rudder will be readily apparent and, therefore, a moreextended eX- planation has been omitted.

Having thus described my invention, I claim:

1. In a boat having a framed opening in one end of its body, a bladeforming a rudder having opposed clutch and pivot sockets, a pivot studarranged within the framed opening and received in the pivot socket inthe blade, and a driving member rotatably mounted in the body andadapted for sliding movement and having a clutch head for engagement inthe clutch socket in the blade.

2. In a boat having a framed opening in one end of its body, a bladeforming a rudder having opposed clutch and pivot sockets, a pivot studarranged within the framed opening and received in the pivot socket inthe blade, a driving member rotatably mounted in the body and adaptedfor sliding movement and having aelutch head for engagement in theclutch socket in the blade, and means for operating said driving memberand supported within the boat.

3. The combination with a boat body having framed openings in the bowand stern thereof, of rudders, each comprising a blade having opposedclutch and pivot sockets, means arranged in the openings for pivotalengagement in the pivot sockets in the blade, stems rotatably andslidably journaled in the body and having clutch heads for detachableengagement in the clutch socket .in the blade, and means arranged withinthe body for rotating the stem.

4. The combination with a boat body having framed openings in the bowand stern thereof, of rudders, each comprising a blade having opposedclutch and pivot sockets, means arranged in the openings for pivotalengagement in the pivot sockets in the blade, stems rotatably andslidably journaled in the body and havingclutch heads for detachableengagement in the clutch socket in the blade, and means arranged withinthe body for rotating the stem, each blade being of substantiallytruncated elliptical shape.

5. The combination with a boat body having framed openings in the bowand stern thereof, of rudders, each comprising a blade 'having opposedclutch and pivot sockets,

means arranged in the openings for pivotal engagement in the pivotsockets in the blade, stems rotatably and slidably journaled in the bodyand having clutch heads for detachable engagement in the clutch socketin the blade, means arranged within the body for rotating the stem, eachblade being of substantially truncated elliptical shape, andreinforcements on the blade.

In testimony whereof I atfix my signature.

NIELS JANTZEN.

copies of this patent may be obtained for five cents each, by addressingthe Commissioner of Patents, Washington, D G.

